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<?php var_dump(array_filter(array_map(function($record){ return (isset($record['quest_name']) ? $record['quest_name'] : null); }, array(array('quest_name'=>'1-1'), array('quest_name'=>'2-1')))));
Output for git.master, git.master_jit, rfc.property-hooks
array(2) { [0]=> string(3) "1-1" [1]=> string(3) "2-1" }

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